Loose-leaf binder.



PATENTED 15m. 11, 1906.

"J.A.MUDD. LOOSE LEAP BINDER. APPLICATION FILED MAR 12 1906? fix ii I 6 5 a NW,

til"lON or lilLihOlS.

LODSE 'LEAF GENDER.

Specification of Letters Patent.

Patented Dec. 11, 1906. 2

Application filed March 12,1906- Serial No. 305,626.

. 1") (17. u'lloi/l 2'11 may won/ 70771 lie ii mourn that i, Josnrn A. MUDD, a ci izen ol the linited States, residing at Chicago, in the county of Cook and. State of lilinois, have inventei'l ii new and useful linprovmnent in Loosedienf Binders, of which the following is a spi-ri'lirntion.

My in rention relates particularly to loosca fixedlysceured to the rock-shafts a nd haviea binders for use in connection with pricehooks, notv-boohs, and lhelike, and my primnry object is to provide a hinder of tins set or riveted to form the connections. The rocleshafts preferably comprise smoll circular resilient: rods. The prongs may be of any suitable iorm. One member ol each pair of prongs is prefe ably provided with a reduced extremity received by a socket in the end of the other member of the pair. Each togglm j t lint. a preterit hly com prises a pair of arms a ing their ends joined by a pivot o The tie member (1 preferably comprises a flat spring character of erweedingly simple and cheap construrtion and. possessing great durnbility and thoroughly adapted to the purpose for which it was dev ised.

The invention is illustrated in its preferred embodiment in the accompanying drawings, in wl'.ieh

Figure 1. represents an end elcvntionnl View of ii booh constructed in accordance With my in 'enti n:-; l ig. 2, a plan View of the binder, frame; llf 1'. l,3. section taken as indicated at line oi Fig.

2; Fig. 4. a section taken as indicated at line 4 of Fig. 2, showing the binder in ts closed condition; ind Fig. 5, a. section similar to Fig. 4, but showing the binder in the open condition.

The book comprises, in the preferred emllUfllnKllF. a binder A and flexible CtlViT-SPC- lion B, joined by 11 hock portion 6. hinder A comprises a pair of end bars (I: a pair of rock-shafts (1 having their end portions joulnnled in the end portions of the end members (1.; impnling prongs or hooks a, can ried by the rock-shafts a; a pair oi togglejoinls a, joining the intermediate portions of the rock-shal'ts; a ventrally-locoted tie menn The Y resting upon the rock-shafts and having dmmwardly and inwardly curved extremities partially encircling the rock-shafts. The filler-blocks a are. recessed at their lateral edges to partially embrace the rock-shafts.

In the open condition of the hinder (shown in Fig. 5) the rock-shafts are parallel and not under flexure. ln this condition, also, the

fining. tic member (1 loosely connects the och shafts and is not under ilexure. When 'n binder is closed, as indicated in Figs. 2 and -l', the toggh joints produce ilexure of the nick-shafts and also produce tension and ilexure oi' the tie member a", the member a" in this condition frictionally gripping the i-oel slial'is, thus tending to prevent the opening oi the binder. The combined lengi h of the arms a (.z of each ttnrgledoint is great-er than the normal i'listance between the wok-shafts, so that the inch-shafts are sp'ru ng when the arms are depressed from the position shown in Fig. 5 to the position shown in Fig. 4, as by closing the jaws of the binder. The construction is such that the pivot 11 passes slightly below the plane of the axes of the roeli-slnifts during the closing her a, joining: the rockshafts; llllPT-l'iltfl'lifi a confined helwecn the rock-shaft said .blocks being of light material, surh as wood or cardboard, and a. flexible strip f ieat her or the like a, having lateral edges joined to the base portions oi" the crwer-sccthins. he frame portion of the hinder bring (-ontined between the flexible men: oer d and the hack of the binder, so that the flexure ol' the rocksha its tends to prevent opening of the binder.

'lhe binder may in supplied with anynnnn her of togrqhsioints serving to prod nco dexnre 1 ol' the n member 5 of the book and said flexible mem- I ber beinq provided with sinistor the prongs a and with slots o for the tog lenits a. The end members (I ol' the him or- .l

i or \iithont thlillcr-hloels 11".

the binder ol nnplr and economical coin l l l ilaino have perforations nlnch lit upon ri-- j ducedportionsatInnrendsol the rovh-shaits, 1 Well nlnl erronoinioallyconnected with the Lhe rock-shalls being: snonldvrvd tidjzl mli. to

leshatls, and the engri-ging ends oi" the arms i-ons inning each toggle-joint may be joined in a pivot, asshown, or the pivot may be omitted. The hinder may be used with or without the tie member a and with Not onlyis struclion, but the form of the binder-frame is such as to enable tho l)lll(i(*l'-l1'tll"l to be bank and unvei -sections in the maimershown; the end bars and having their extremities npi The foregoing detailed description lltlS been is not to be regarded as in the nature oi. an 1 undue limitation.

What I regard as new, and desire to secure 5 by Letters Patent, is

1. A binder comprising a pair of rockshafts, inipaling-prongs carried by said rock- I shafts, members connecting said rock-shafts, 3

and a toggle-joint operating to produce lexure of the rock-shafts, for the purpose set forth.

2. A binder comprising a pair of end members, a pair of rock-shafts pivot-ally connected therewith, in1j)alingpr0ngs carried by said rock-shafts, ann a toggle-joint connecting the rock-shafts between said end members and operating to produce flexure of the rockshefts, for the purpose set forth.

3. A binder comprisin end members, a pair of rocleshaits pivotal y connected therethe rock-shafts and of greater length than the normal distance between the rockshafts in the open condition of the binder, said arms operating to sring the rock-shafts durin the operation 0' closing the binder.

5. A binder comprising end members, a pair of rock-shafts pivotally connected therewith and equipped with prongs, and atog lel joint connecting said rock-shafts between with, prongs carried by said rock-shafts, and j pair of arms rigidly connected with the rock-shafts and having engaging ends located 5 above the plane of the axes of the rock-shafts in the open condition of thebinder, said arms adapted to spring, the rock-shafts when the binder is closed, for the purpose set forth.

said end members, in combination with coversections, a back member connecting said coversections, and a flexible member having its latera edges joined. to the base portions of said cover-sections, said flexible member confining. the binder-frame between the flexible member and said back member.

A binder comprising a pair of end menioers, a pair of reel shafts j'ournaled therein, an intermediately -located'. toggle-joint connecting said rock-shafts, a filler in the space between the roch sha'fts, and nrongs carried by the rock shafts, in combination with cover-sections, a back member joining said cover-sections, a flexible member joining the 4. A binder comprising a pair ofroclef snafts, nnpahng-prongs carried by said rock- 5 shafts, connectin means joining said rock i shafts at their ends, an intermediate tie memher, and an intermediate pair of arms fixed to base portions of thepover-sections and having slots receiving said prongs, for the purpose set forth.

JOSEPH A. MUDDI ln presence of---- A. U' Tnonrnrr. J. B. Lnn'nns 

